Skip to main content

Military Health System

Test of Sitewide Banner

This is a test of the sitewide banner capability. In the case of an emergency, site visitors would be able to visit the news page for addition information.

Relation of repeated low-level blast exposure with symptomology similar to concussion.

Publication Status: Published

Sponsoring Organization: Defense Health Agency (formerly TRICARE Management Activity)

Sponsoring Office: Walter Reed National Military Medical Center

Congressionally Mandated: No

Funding Source: Undetermined

Release Date/Publication: January 01, 2015

Principle Investigator Status: Government

Primary DoD Data Source: Other Survey

Secondary DoD Data Source:


To investigate anecdotal reports suggesting that repeated exposure to low-level explosive blast has myriad health impacts, including an array of neurological effects.

A total of 184 anonymous survey respondents from military and nonmilitary law enforcement populations (135 exposed to occupational blast and 49 controls).

Survey of self-reported history of occupational exposure to repeated low-level blast (breaching blast) and symptomology similar to concussion.

Findings suggest that number and severity of symptoms increase with history of chronic blast exposure (F = 18.26, P < .001) and that symptoms can interfere with daily activity (t = 2.60, P = .010).

Given the prevalence of repeated exposure to blast among some military and civilian law enforcement occupations, the results of this survey study support a role for blast surveillance programs as well as continued research on health impacts of low-level repeated blast exposure.


Carr W, Polejaeva E, Grome A, Crandall B, LaValle C, Eonta SE, Young LA. Relation of repeated low-level blast exposure with symptomology similar to concussion. J Head Trauma Rehabil. 2015 Jan-Feb;30(1):47-55.

Last Updated: February 21, 2019
Follow us on Instagram Follow us on LinkedIn Follow us on Facebook Follow us on Twitter Follow us on YouTube Sign up on GovDelivery